ConfidenceIntervals
(andrelatedcalculations)
usingStatCrunch
CIforpopulationmeaninStatCrunch
1. If use raw data and the population standard deviation is known use
(1) Stat Z statistics One sample with data
(2) Select variable and specify the population st
Data Chosen: TABLE 1-1. Resident population of the United States, by age and sex: 2014
Website obtained from: http:/www.nsf.gov/statistics/2015/nsf15311/tables.cfm
http:/www.nsf.gov/statistics/2015/nsf15311/tables/pdf/tab1-1-updated-2016-06.pdf
Questions:
Lab #2: Scatterplots; Regression
Part I: Scatterplots
Question #1: What can you say about these data?(please be very specific and detailed.)
This scatterplot is created by two different quantitative variables therefore it is bivariate data. A
relationship
This is a study on the giving rate of alumni who attend private universities.
Questions:
1. What universities are in your study?
-After following the steps above, the universities that appeared were George Washington, Harvard, John
Hopkins, Loyola and Nor
Lab #8: Binomial Distribution and Normal
Approximation
Part I:
Dr. Clark claims to possess extrasensory perception (ESP). An experiment is
conducted in which a person in one room picks one of the integers 1, 2, 3, 4,
or 5 at random and concentrates on it
Lab #6: Random Variables, Probability Models, and Law of Large Numbers
I.
Choose an American household at random and let the random variable X
be the number of cars (including SUVs and light trucks) they own. Here is the
probability model if we ignore the
Decimal point is 2 digit(s) to the right of the colon.
Leaf unit = 10
0 : 0000011112233444
0 : 5555666667777888888999
1 : 000122223344444
1 : 556888
2 : 00013
2 : 7899
3:3
3 : 779
4:4
4 : 78
High: 700, 700, 951, 1148, 2631
Question #1: What do you notice
Lab #5: Probability
I.
2.
3.
A standard deck of cards contains 52 cards. There are 4 suits in the deck: 13 hearts, 13 diamonds,
13 clubs, and 13 spades. Consider the probability experiment of drawing one card from a deck of
cards.
Questions:
What is the s
Edgar Li
Business Statistics
04.09.13
Estimate the proportion, p, of students wearing pants today with 95% confidence using
the statistic, p^, found from this class. *p^ = proportion
N = 15
X = number of students wearing pants
P^ = 3/5 = 0.20
Write the di
Name_
Lab #1: Intro to StatCrunch-Graphs and Descriptive Statistics
STAT 202
You will use StatCrunch to answer the following questions.
Your lab should be submitted as a Word document. Please copy and paste any graphs that you create into your
lab documen
Stat 202
Midterm 2 Review
Remember: Show work to receive partial credit.
1. Ricky rolls two die at the same time.
a. Find the probability that both die roll a 6.
b. Find the probability that both die roll an odd number.
2. What value would be needed to co
Exam 1
statistics the science of learning from data
individuals objects described by a data set
variables characteristics of an individual
there are 2 types of variables in data sets:
o quantitative anything naturally occurring as a number
you can do ope